Gansu Tongwei-Dingxi Expressway
Corrugated Steel Box Girder
Span arrangement: 3×50=150m, 40+60+40=140m
Under Construction in 2022
Gansu Tongwei-Dingxi Expressway
Corrugated Steel Box Girder
Span arrangement: 3×50=150m, 40+60+40=140m
Under Construction in 2022